import pytz
print(pytz.all_timezones)
# import sys
# import time
# import threading
# from PyQt6.QtCore import pyqtSignal, QObject
# from PyQt6.QtWidgets import QApplication, QWidget, QVBoxLayout, QPushButton, QTextEdit
# from selenium import webdriver
# from PyQt6.QtGui import QTextCursor
# from PyQt6.QtCore import Qt
# from PyQt6.QtWidgets import QMessageBox


# # 定义一个信号类，用于在线程和界面交互中传递暂停、恢复等信号
# class ThreadSignal(QObject):
#     is_paused = False
#     paused = pyqtSignal()
#     resumed = pyqtSignal()


# # 工作线程类，执行具体的循环操作任务
# class WorkerThread(threading.Thread):
#     def __init__(self, signal, text_edit):
#         super().__init__()
#         self.signal = signal
#         self.text_edit = text_edit
#         self.is_running = True

#     def run(self):
#         while self.is_running:
#             if not self.signal.is_paused:
#                 current_time = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime())
#                 self.text_edit.moveCursor(QTextCursor.MoveOperation.End)
#                 self.text_edit.insertPlainText(current_time + '\n')
#                 self.text_edit.ensureCursorVisible()
#                 time.sleep(1)
#             else:
#                 # 线程暂停时等待恢复信号
#                 self.signal.resumed.wait()


# class MyWidget(QWidget):
#     def __init__(self):
#         super().__init__()
#         self.thread_signal = ThreadSignal()
#         self.thread = None
#         self.init_ui()

#     def init_ui(self):
#         layout = QVBoxLayout()

#         # 创建启动按钮并连接点击事件处理函数
#         start_button = QPushButton('启动')
#         start_button.clicked.connect(self.start_clicked)
#         layout.addWidget(start_button)

#         # 创建暂停按钮并连接点击事件处理函数
#         pause_button = QPushButton('暂停')
#         pause_button.clicked.connect(self.pause_clicked)
#         layout.addWidget(pause_button)

#         # 创建文本框
#         self.text_edit = QTextEdit()
#         self.text_edit.setFixedHeight(30)  # 设置文本框高度为一行
#         layout.addWidget(self.text_edit)

#         self.setLayout(layout)

#         self.setWindowTitle('功能示例窗口')
#         self.show()

#     def start_clicked(self):
#         if self.thread is None:
#             # 使用Selenium打开百度网页
#             self.driver = webdriver.Chrome()
#             self.driver.get("https://www.baidu.com/")

#             # 弹出对话框提示用户点击准备好按钮
#             msg_box = QMessageBox()
#             msg_box.setText("请点击准备好按钮继续")
#             msg_box.setStandardButtons(QMessageBox.StandardButton.Ok)
#             msg_box.exec()

#             # 启动线程
#             self.thread = WorkerThread(self.thread_signal, self.text_edit)
#             self.thread.start()
#         elif self.thread_signal.is_paused:
#             # 如果线程已暂停，发送恢复信号
#             self.thread_signal.is_paused = False
#             self.thread_signal.resumed.emit()

#     def pause_clicked(self):
#         if self.thread is not None:
#             # 设置暂停信号为True，并发送暂停信号
#             self.thread_signal.is_paused = True
#             self.thread_signal.paused.emit()

#     def closeEvent(self, event):
#         # 关闭窗口时，停止线程并关闭浏览器
#         if self.thread is not None:
#             self.thread.is_running = False
#             self.thread.join()
#         if hasattr(self, 'driver'):
#             self.driver.quit()
#         event.accept()


# if __name__ == '__main__':
#     app = QApplication(sys.argv)
#     widget = MyWidget()
#     sys.exit(app.exec())